【摘要】 开始于可压缩流体叶轮机械的三元流动计算理论,目前正在向不可压缩流体叶轮机械方面推广使用。国外已把三元流动理论用于水泵和水轮机的设计和对性能进行予估。本文介绍根据文献[2]和[3]的准三元理论用电子计算机对混流式水泵水轮机转轮进行计算的结果,文中叙述了所采用的准三元理论和主要的数值计算方法,并列举了电子计算机计算的主要步骤和计算结果。更多还原

【Abstract】 The three dimensional flow analysis methods originally developed for compressible turbo-machinery are now finding wide application in incompressible turbo-machinery.Three dimensional flow methods have already been used in the design and performance prediction of pumps and turbines in foreign countries.This paper presents a quasi-three dimensional flow analysis of Francis-type pump-turbine runners according to the methods of References ( 2 ) and( 3 ) with the aid of electronic computers.Described in the paper are the fundamental three-dimensional relations and the essential numerical methods employed as well as the principal procedures and calculated results.更多还原